:root{
  --bg:#f5f7fa; --card:#ffffff; --ink:#12263f; --muted:#64748b; --line:#e2e8f0;
  --accent:#0e7c66; --accent-soft:#e6f4f0; --gold:#b78628; --danger:#b91c1c;
  --radius:14px; --shadow:0 1px 3px rgba(18,38,63,.06),0 8px 24px rgba(18,38,63,.05);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
header{background:linear-gradient(135deg,#0e7c66,#12a184);color:#fff;padding:34px 0 30px;margin-bottom:26px}
header h1{margin:0;font-size:24px;font-weight:700;letter-spacing:-.2px}
header .sub{margin:6px 0 0;opacity:.9;font-size:14px}
main{padding-bottom:60px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px;margin-bottom:22px}
.card h2{margin:0 0 18px;font-size:17px;font-weight:650}
.card h3{margin:16px 0 10px;font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
@media(max-width:860px){.grid{grid-template-columns:1fr}}
.field{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.field label{flex:1;font-size:14px}
.field .hint{color:var(--muted);font-size:12px;display:block}
.field input,.field select{width:190px;padding:9px 12px;border:1px solid var(--line);border-radius:9px;
  font:inherit;font-size:14px;background:#fbfcfd;color:var(--ink);text-align:right;transition:border-color .15s,box-shadow .15s}
.field select{text-align:left}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fff}
.field.small input{width:110px}
.field .unit{color:var(--muted);width:14px;font-size:13px}
.field.total{border-top:1px dashed var(--line);padding-top:12px;font-weight:650}
.field.total output{width:110px;text-align:right;color:var(--accent);padding-right:14px}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}
.note{font-size:12px;color:var(--muted);margin:10px 0 0}
.card.highlight{background:linear-gradient(180deg,#ffffff,#fbfdfc);border-color:#cfe7e0}
.kontribusi{background:var(--accent-soft);border:1px solid #cfe7e0;border-radius:12px;
  padding:16px 18px;margin-bottom:18px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}
.kontribusi .label{font-size:13px;color:#0b5c4c;font-weight:600}
.kontribusi .value{font-size:26px;font-weight:750;color:var(--accent);letter-spacing:-.5px}
.benefit{display:flex;gap:13px;padding:13px 0;border-bottom:1px solid var(--line)}
.benefit:last-child{border-bottom:none}
.benefit .num{flex:none;width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;
  font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:2px}
.benefit p{margin:0 0 4px;font-size:13.5px;color:var(--muted)}
.benefit em{font-style:normal;color:var(--gold);font-weight:600}
.benefit strong{font-size:19px;font-weight:700;letter-spacing:-.3px}
.error{background:#fef2f2;border:1px solid #fecaca;color:var(--danger);padding:11px 14px;
  border-radius:10px;font-size:13.5px;margin-bottom:14px}
.hidden{display:none}
.cap{color:var(--muted);font-size:13px;font-weight:400}
p.cap{margin:-8px 0 18px}
.chartbox{position:relative;height:340px}
.chartrow{display:grid;grid-template-columns:1.35fr 1fr;gap:22px;margin-top:26px}
@media(max-width:860px){.chartrow{grid-template-columns:1fr}}
.chartbox.half{height:290px}
.tablescroll{overflow-x:auto;margin:0 -4px}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:760px}
th,td{padding:10px 12px;text-align:right;border-bottom:1px solid var(--line)}
th{background:#f8fafc;color:var(--muted);font-weight:600;font-size:12px;
  text-transform:uppercase;letter-spacing:.4px;vertical-align:bottom;border-bottom:2px solid var(--line)}
th:first-child,td:first-child{text-align:center;font-weight:600}
tbody tr:hover{background:#f8fbfa}
tbody tr:last-child td{font-weight:650;background:var(--accent-soft)}
.explain ol{margin:0;padding-left:20px}
.explain li{margin-bottom:9px;font-size:14px}
.explain code{background:#f1f5f9;padding:1.5px 6px;border-radius:5px;font-size:12.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#0b5c4c}
.flow{display:flex;align-items:center;gap:8px;margin-top:22px;flex-wrap:wrap}
.flow .step{flex:1;min-width:110px;background:#f8fafc;border:1px solid var(--line);
  border-radius:10px;padding:12px 10px;text-align:center}
.flow .step span{display:block;font-weight:650;font-size:13px}
.flow .step small{color:var(--muted);font-size:11.5px}
.flow .step.accent{background:var(--accent-soft);border-color:#cfe7e0;color:var(--accent)}
.flow i{color:var(--muted);font-style:normal}
.notes p{font-size:12.5px;color:var(--muted);margin:6px 0}